/Engine/Source/Developer/DirectoryWatcher/Public/IDirectoryWatcher.h
struct FFileChangeData
EFileChangeActi...
Action
The reported Action.
FString
Filename
If the Action references a specific file, the name of the file.
int64
TimeStamp
If the Action references a timestamp, the timezone UTC UnixTimeStamp (e.g. FDateTime::ToUnixTimeStamp) of the Action.